XYZ Racing Tarmac Rally Coilovers — Subaru IMPREZA GDB STI D-F (PCD: 5 X 114.3) 4WD 2005-2007

Sealed-stage tarmac rally does something no circuit ever does to a car: it throws broken cambers, mid-corner crests and sudden surface changes at the chassis with almost no warning, all while the Impreza’s four-wheel-drive system is trying to put turbocharged power down through every corner at once. The GDB STI D-F, built between 2005 and 2007, arrived from the factory with a chassis that already understood rough roads. What it didn’t come with was a damper capable of holding that composure at full stage pace.

XYZ Racing’s Tarmac Rally coilover for the Subaru Impreza GDB STI D-F (PCD: 5 x 114.3) 4WD is built specifically for that scenario – fast, rough, closed-road running where the car has to stay planted through compressions and crests without the driver lifting. It’s a spec drawn from XYZ’s own tarmac rally programme, not a road kit with the rebound wound up.

What this coilover does for your 2005-2007 Subaru Impreza GDB STI D-F (PCD: 5 X 114.3) 4WD

On a stage, the biggest threat to a GDB STI isn’t a lack of outright grip, it’s the car losing its composure over a compression or crest and unsettling the whole four-wheel-drive system’s torque split. This coilover is set up to absorb the impact of broken and uneven tarmac before it reaches the chassis, taking the jolt out of the big hits so the drivetrain keeps working with a level car underneath it instead of fighting a pitching one. Suppressing that body movement through compressions also keeps the tyre’s contact patch loaded more evenly, which on a turbocharged, all-wheel-drive Impreza means the power gets put down earlier and harder out of a hairpin instead of being wasted on a skipping wheel. The car holds its line and its traction through the kind of surface changes a tarmac stage throws up every few hundred metres, not just on smooth trackday asphalt.

About the Tarmac Rally coilover

The Tarmac Rally coilover in the XYZ Racing range is built around one job: soaking up the punishment of broken, uneven tarmac stages without letting that punishment reach the driver or the chassis. Hit a pothole, a ridge or a damaged section of road at speed and the damper is tuned to absorb that jolt rather than pass it through the body, keeping body shock suppressed and the tyre working the surface instead of skipping across it. That control is what gives the car stable, predictable handling even as the road surface degrades mid-stage. The spring rates and valving in this kit come directly from XYZ Racing’s own tarmac rally running – settings pulled from real stages, not a desk exercise – so a GDB STI on this coilover gets the same base calibration the team uses when the tarmac stops being smooth.

Fitment for the Subaru IMPREZA GDB STI D-F (PCD: 5 X 114.3) 4WD (2005-2007)

This kit is built specifically for the Subaru Impreza GDB STI D-F, chassis code SU05-1, covering the 2005 to 2007 model years, with the 5 x 114.3 PCD wheel fitment confirmed as part of this specification. Check your build date falls inside this window before ordering.

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Every GDB STI leaves the factory set up for the road, not a stage – configure your Tarmac Rally spec below to match how you actually drive it.